(3) Pholisora lybia Scudder, [Plate CXXXIV], Fig. 3, ♂ (The Mohave Sooty-wing).
Distinguished from the two preceding by the white fringes of the wings and by the markings of the upper side. Expanse 0.80-1.40 inch.
Found from western Texas to Nevada and Arizona.
(4) Pholisora alpheus (Edwards), [Plate CXXXIV], Fig. 4, ♂ (New Mexican Sooty-wing).
More checkered on the upper side than the other species, tip of fore wing white. Expanse 0.95-1.00 inch.
Ranges from New Mexico to Arizona.
Genus THANAOS Boisduval
(The Dusky-wings).
PL. CXXXV
(1) Thanaos brizo Boisduval & Leconte, [Plate CXXXV], Fig. 1, ♀ (The Sleepy Dusky-wing).